GB2392273B - Using dynamic operation information to control deferral of control-speculative loads - Google Patents

Using dynamic operation information to control deferral of control-speculative loads

Info

Publication number
GB2392273B
GB2392273B GB0316908A GB0316908A GB2392273B GB 2392273 B GB2392273 B GB 2392273B GB 0316908 A GB0316908 A GB 0316908A GB 0316908 A GB0316908 A GB 0316908A GB 2392273 B GB2392273 B GB 2392273B
Authority
GB
United Kingdom
Prior art keywords
control
deferral
operation information
dynamic operation
speculative loads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0316908A
Other languages
English (en)
Other versions
GB2392273A (en
GB0316908D0 (en
Inventor
Jonathan K Ross
Dale Morris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB0316908D0 publication Critical patent/GB0316908D0/en
Publication of GB2392273A publication Critical patent/GB2392273A/en
Application granted granted Critical
Publication of GB2392273B publication Critical patent/GB2392273B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3861—Recovery, e.g. branch miss-prediction, exception handling
    • G06F9/3865—Recovery, e.g. branch miss-prediction, exception handling using deferred exception handling, e.g. exception flags
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3824—Operand accessing
    • G06F9/383—Operand prefetching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Advance Control (AREA)
  • Executing Machine-Instructions (AREA)
GB0316908A 2002-07-29 2003-07-18 Using dynamic operation information to control deferral of control-speculative loads Expired - Fee Related GB2392273B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/208,095 US6931515B2 (en) 2002-07-29 2002-07-29 Method and system for using dynamic, deferred operation information to control eager deferral of control-speculative loads

Publications (3)

Publication Number Publication Date
GB0316908D0 GB0316908D0 (en) 2003-08-20
GB2392273A GB2392273A (en) 2004-02-25
GB2392273B true GB2392273B (en) 2005-08-10

Family

ID=27765831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0316908A Expired - Fee Related GB2392273B (en) 2002-07-29 2003-07-18 Using dynamic operation information to control deferral of control-speculative loads

Country Status (3)

Country Link
US (1) US6931515B2 (ja)
JP (1) JP4137735B2 (ja)
GB (1) GB2392273B (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040117606A1 (en) * 2002-12-17 2004-06-17 Hong Wang Method and apparatus for dynamically conditioning statically produced load speculation and prefetches using runtime information
US7308682B2 (en) * 2003-04-25 2007-12-11 Intel Corporation Method and apparatus for recovering data values in dynamic runtime systems
US7313790B2 (en) * 2003-06-23 2007-12-25 Intel Corporation Methods and apparatus for preserving precise exceptions in code reordering by using control speculation
US7975130B2 (en) * 2008-02-20 2011-07-05 International Business Machines Corporation Method and system for early instruction text based operand store compare reject avoidance
US7930522B2 (en) * 2008-08-19 2011-04-19 Freescale Semiconductor, Inc. Method for speculative execution of instructions and a device having speculative execution capabilities
WO2013095392A1 (en) * 2011-12-20 2013-06-27 Intel Corporation Systems and method for unblocking a pipeline with spontaneous load deferral and conversion to prefetch
US9626189B2 (en) 2012-06-15 2017-04-18 International Business Machines Corporation Reducing operand store compare penalties
US10481876B2 (en) * 2017-01-11 2019-11-19 Microsoft Technology Licensing, Llc Methods and systems for application rendering
US10459817B2 (en) * 2017-01-18 2019-10-29 International Business Machines Corporation Evaluating performance improvement of executing instructions in a first processor over execution on a second processor
WO2020191920A1 (en) * 2019-03-25 2020-10-01 Huawei Technologies Co., Ltd. Storing complex data in warp gprs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294341A (en) * 1994-10-18 1996-04-24 Hewlett Packard Co Providing support for speculative execution
US5881280A (en) * 1997-07-25 1999-03-09 Hewlett-Packard Company Method and system for selecting instructions for re-execution for in-line exception recovery in a speculative execution processor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1109096A3 (en) * 1999-12-17 2004-02-11 Fujitsu Limited Processor and method of controlling the same
JP3729064B2 (ja) * 2000-11-29 2005-12-21 日本電気株式会社 データ依存関係検出装置
JP3729087B2 (ja) * 2001-05-23 2005-12-21 日本電気株式会社 マルチプロセッサシステム、データ依存投機実行制御装置およびその方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294341A (en) * 1994-10-18 1996-04-24 Hewlett Packard Co Providing support for speculative execution
US5881280A (en) * 1997-07-25 1999-03-09 Hewlett-Packard Company Method and system for selecting instructions for re-execution for in-line exception recovery in a speculative execution processor

Also Published As

Publication number Publication date
GB2392273A (en) 2004-02-25
US20040019768A1 (en) 2004-01-29
JP4137735B2 (ja) 2008-08-20
US6931515B2 (en) 2005-08-16
GB0316908D0 (en) 2003-08-20
JP2004062908A (ja) 2004-02-26

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120329 AND 20120404

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140718